Timeout on dedicated card?

Still working on the same project - but now with larger problem sizes. This causes launch timeouts on the GPU. Since I am far enough that I am confident this is a viable solution for me, I went ahead and bought a second GPU (GTX650) to run my displays so that
the more powerful card (GTX650 Ti) can run the program - but for some reason it's still timing out.

Any ideas on this?
I am running in Window 7, displays are attached to the primary GPU (GTX650), I have made sure the code is running on the secondary GPU (GTX 650 Ti). I am testing this by simply running an infinite loop on the card. (While(true))